Wanda flat PU tread on cast aluminium wheels, yellow color, is most popular in Europe, North America, Australia etc. With durable PU material can be anti chemistry, strong hardness and heavy load capacity, anti-corrosion. The size could be selected from 4 inch, 5 inch, 6 inch, 8 inch and 10 inch. Wanda PU on aluminium core casters are mostly used in factory, machine equipment, engineering, construction,hand carts and trolleys.